Luke Hughes1, Bruce Paton2, Fares Haddad2, Benjamin Rosenblatt3, Conor Gissane4, Stephen David Patterson4. 1. School of Sport, Health and Applied Science, St Mary's University, London, TW1 4SX, UK; Institute of Sport, Exercise and Health, 170 Tottenham Court Road, London, UK. Electronic address: luke.hughes@stmarys.ac.uk. 2. Institute of Sport, Exercise and Health, 170 Tottenham Court Road, London, UK. 3. The Football Association, St. George's Park, Burton-Upon-Trent, UK. 4. School of Sport, Health and Applied Science, St Mary's University, London, TW1 4SX, UK.
Abstract
OBJECTIVES: To compare the acute perceptual and blood pressure responses to: 1) light load blood flow restriction resistance exercise (BFR-RE) in non-injured individuals and anterior cruciate ligament reconstruction (ACLR) patients; and 2) light load BFR-RE and heavy load RE (HL-RE) in ACLR patients. DESIGN: Between-subjects, partially-randomised. METHODS: This study comprised 3 groups: non-injured BFR-RE (NI-BFR); ACLR patients BFR-RE (ACLR-BFR); ACLR patients HL-RE (ACLR-HL). NI-BFR and ACLR-BFR performed 4 sets (30, 15, 15, 15 reps, total = 75 reps, 30s inter-set rest) of unilateral leg press exercise at 30% 1RM with continuous BFR at 80% limb occlusive pressure. ACLR-HL performed 3 × 10 reps (Total = 30 reps, 30s inter-set rest) of unilateral leg press exercise at 70% 1RM. Perceived exertion (RPE), muscle pain, knee pain and pre- and 5-min post-exercise blood pressure were measured. RESULTS:RPE was higher in ACLR-BFR compared to NI-BFR (p < 0.05). Muscle pain was higher in NI-BFR and ACLR-BFR compared to ACLR-HL (p < 0.05). Knee pain was lower in ACLR-BFR compared to ACLR-HL (p < 0.01). There were no differences in blood pressure. CONCLUSION: These responses to BFR exercise may not limit application and favourably influence knee pain throughout ACLR rehabilitation training programmes. These findings can help inform practitioners' decisions to utilise this tool. Crown
RCT Entities:
OBJECTIVES: To compare the acute perceptual and blood pressure responses to: 1) light load blood flow restriction resistance exercise (BFR-RE) in non-injured individuals and anterior cruciate ligament reconstruction (ACLR) patients; and 2) light load BFR-RE and heavy load RE (HL-RE) in ACLR patients. DESIGN: Between-subjects, partially-randomised. METHODS: This study comprised 3 groups: non-injured BFR-RE (NI-BFR); ACLR patients BFR-RE (ACLR-BFR); ACLR patients HL-RE (ACLR-HL). NI-BFR and ACLR-BFR performed 4 sets (30, 15, 15, 15 reps, total = 75 reps, 30s inter-set rest) of unilateral leg press exercise at 30% 1RM with continuous BFR at 80% limb occlusive pressure. ACLR-HL performed 3 × 10 reps (Total = 30 reps, 30s inter-set rest) of unilateral leg press exercise at 70% 1RM. Perceived exertion (RPE), muscle pain, knee pain and pre- and 5-min post-exercise blood pressure were measured. RESULTS: RPE was higher in ACLR-BFR compared to NI-BFR (p < 0.05). Muscle pain was higher in NI-BFR and ACLR-BFR compared to ACLR-HL (p < 0.05). Knee pain was lower in ACLR-BFR compared to ACLR-HL (p < 0.01). There were no differences in blood pressure. CONCLUSION: These responses to BFR exercise may not limit application and favourably influence knee pain throughout ACLR rehabilitation training programmes. These findings can help inform practitioners' decisions to utilise this tool. Crown
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